# `Stripe.Params.Checkout.SessionCreateParams.OptionalItems`
[🔗](https://github.com/jeffhuen/tiger_stripe/blob/main/lib/stripe/params/checkout/session_create_params.ex#L764)

Nested parameters.

# `t`

```elixir
@type t() :: %Stripe.Params.Checkout.SessionCreateParams.OptionalItems{
  adjustable_quantity:
    Stripe.Params.Checkout.SessionCreateParams.OptionalItems.AdjustableQuantity.t()
    | nil,
  price: String.t() | nil,
  quantity: integer() | nil
}
```

* `adjustable_quantity` - When set, provides configuration for the customer to adjust the quantity of the line item created when a customer chooses to add this optional item to their order.
* `price` - The ID of the [Price](https://docs.stripe.com/api/prices) or [Plan](https://docs.stripe.com/api/plans) object. Max length: 5000.
* `quantity` - The initial quantity of the line item created when a customer chooses to add this optional item to their order.

---

*Consult [api-reference.md](api-reference.md) for complete listing*